CN102990759B - Dipping compression strengthened floor and manufacturing method thereof - Google Patents

Abstract

Impregnated compression laminate flooring and method of manufacture. The invention provides a method for making a high-performance floor that can be directly used indoors and outdoors by using fast-growing wood or bamboo to produce wear-resistant, flame-retardant, mildew-proof, anti-corrosion, insect-proof and other properties. The manufacturing method is to cut the fast-growing wood into boards and then dry and planar to obtain the floor wool; Molecular phenolic resin or melamine formaldehyde resin; dry the impregnated floor wool until the resin content is 50-80% to obtain a blank; or dry the impregnated floor wool until the resin is completely cured, and then apply an adhesive to obtain a blank; laminate the bamboo blank The bamboo body is obtained from the blank; the bamboo body or the fast-growing material blank is cold-pressed or hot-pressed to obtain a floor blank; the floor blank is grooved or flat-cut to obtain an impregnated compressed reinforced floor.

Description

Impregnated compression laminate flooring and method of manufacturing the same

technical field

The invention relates to an impregnated compressed reinforced floor and a manufacturing method thereof, in particular to a fast-growing wood or bamboo impregnated compressed reinforced floor and a manufacturing method thereof. The reinforced floor prepared by this method has significantly improved strength and dimensional stability, without additional reinforcement treatment, and has properties such as wear resistance, flame retardancy, mildew resistance, corrosion resistance, and insect resistance, and can be used directly without painting (especially directly for use in outdoor). the

Background technique

With the vigorous development of the national economy and the improvement of residents' living standards, solid wood flooring has become the first choice for people's floor decoration due to its advantages of comfortable feet, natural warmth, elegance and so on. The wood used to make solid wood floors is generally a precious wood with a large diameter, relatively high density, straight texture, and few natural defects. In the current situation of increasing shortage of forest resources in the world, coupled with the protection of the environment and forest resources in various countries , so that the price of wood raw materials continues to rise, which has become increasingly difficult to meet the wood species and felling volume required for the production of existing solid wood flooring. Many solid wood floor production enterprises cannot produce smoothly due to insufficient supply of raw materials or rising prices. To ensure the sustainable and healthy development of solid wood floor enterprises, especially based on the existing supply of wood raw materials, and to produce products that do not change their performance or have better For high-performance solid wood flooring, it is necessary to improve or innovate the existing flooring production technology while innovating raw materials (such as using a large amount of fast-growing wood and bamboo instead of precious wood with high diameter and high density) to improve the comprehensive utilization of wood materials. , especially how to make full use of fast-growing tree species (small diameter, low density, soft material and low strength), bamboo, etc. to produce floors with high strength, high dimensional stability and high weather resistance, is an urgent need for the solid wood flooring industry. solved problem.

Solid wood flooring has high requirements on the quality of logs, especially the diameter grade. With the transformation of timber from natural forests to fast-growing artificial forests, the supply and diameter grades of precious logs used as floor materials continue to decrease, while It has gradually become an inevitable choice to use fast-growing wood and bamboo as raw materials to produce solid wood flooring. However, the disadvantages of fast-growing wood, such as large variability in material properties, soft material, low density, and large drying shrinkage deformation, make it widely used in the manufacture of solid wood flooring. In particular, it is particularly difficult to process fast-growing small-diameter timber (usually only a few centimeters to a dozen centimeters in diameter) into solid wood flooring. Therefore, the fast-growing wood must be strengthened before it can be used for the production of solid wood flooring.

At present, there are two main methods for the strengthening treatment of fast-growing wood: compression carbonization and impregnation treatment.

The Chinese patent with the publication number CN101486212A discloses a technical invention that fully utilizes fast-growing poplar to produce "compressed carbonized poplar three-layer solid wood composite floor". The treated poplar core layer and the bottom layer of poplar veneer are compounded. Although the surface layer of the obtained three-layer structure solid wood floor has been strengthened, the overall performance of the whole floor has not been significantly improved, and the natural structural defects of fast-growing wood are still inevitable; Publication No. The Chinese patent of CN102407548A discloses a method for producing solid wood flooring of fast-growing wood through compression densification and high-temperature heat treatment. Medium-heat pressing and densification before curing. After the curing, heat-treat the board in an oven or drying kiln at 180-210°C to make a board with a cross-sectional density gradient that is high on both surfaces and low in the core layer. Although this treatment method A better cross-sectional density distribution can be obtained, but the later heat treatment will lead to a large decrease in the structural strength of the fast-growing wood. The Chinese patent with the publication number CN102605928A discloses a method of vacuum pressure impregnation treatment of poplar, drying, and then hot pressing with a color-matching layer, an ultra-thin natural veneer decorative layer and a wear-resistant layer to produce a composite solid wood floor. It still needs a more expensive wear-resistant layer to strengthen, in fact, there is no essential difference from the production method of composite laminated flooring based on MDF. The biggest shortcoming of the above method is that it is impossible to utilize small-diameter fast-growing timber for production, and the products obtained generally cannot be used outdoors in addition.

Therefore, how to overcome the deficiencies of the existing technology and make full use of the existing fast-growing species (or bamboo), especially the small-diameter timber with huge output, without additional reinforcement measures, simple process and equipment, low investment, and no need for mildew prevention, Anti-corrosion, insect-proof, flame-retardant treatment, dimensionally stable high-performance floors that can be used both indoors and outdoors are problems that must be solved.

Contents of the invention

The purpose of the present invention is to provide a kind of making full use of fast-growing wood (especially the small-diameter wood (pine, Chinese fir, poplar, eucalyptus, bamboo willow and meranti, etc.) with a diameter of 8-20cm) or bamboo to make wear-resistant , Flame retardant, anti-mildew, anti-corrosion, insect-proof and other properties, can be directly used in the manufacture of high-performance flooring indoors and outdoors without finishing.

The manufacturing method of the impregnated compression reinforced floor of the present invention, comprises the following steps:

a. Making floor wool: cutting the fast-growing wood into boards, drying, planing to obtain floor wool; or splitting the bamboo longitudinally, plasticizing, flattening, drying, and planing to obtain floor wool;

b. Impregnation: impregnate the floor wool with low molecular weight phenolic resin or melamine formaldehyde resin;

c. Dry until the resin is completely cured and apply glue or dry until the resin is not completely cured: dry the impregnated floor wool until the resin content is 50-80% to obtain a blank; or dry the impregnated floor wool until the resin is completely cured, and then apply adhesive Obtain the blank; the adhesive is resorcinol formaldehyde resin, phenol modified resorcinol formaldehyde resin, or polyurethane adhesive;

d. Blank assembly: Bamboo blanks are laminated and assembled to obtain bamboo blanks;

e. Hot pressing or cold pressing forming: cold pressing or hot pressing the bamboo body or fast-growing wood blank to obtain the floor blank;

f. Make the floor blanks grooved or flattened to obtain an impregnated compression reinforced floor.

Beneficial effects of the present invention: the present invention uses fast-growing wood (including small-diameter wood) or bamboo as raw material, and the source of raw material is very rich, and the raw material does not need finishing processing, and the utilization rate of raw material is high. Lumber making, drying, jigsawing, billet assembly and hot pressing (or cold pressing) forming etc. are all prior art. The impregnation treatment is to make the resin fill the pores in the fast-growing wood and bamboo, and due to the curing and bonding of the impregnated resin during the compression process, the wood and bamboo are glued and connected in the direction of compression, so that the density increases significantly, and due to the glue of the resin. Prevent the thickness rebound and volume shrinkage after hot pressing, and the impregnated resin itself has high waterproof, wear-resistant, mildew-proof, anti-corrosion, insect-proof and flame-retardant properties, so that the solid wood floor is dimensionally stable, Wear-resistant, mildew-proof, anti-corrosion, insect-proof and flame-retardant, no need for related treatment, it can be used directly without painting, especially for outdoor use.

The floor wool in the present invention includes fast-growing floor wool made of fast-growing wood and bamboo floor wool made of bamboo. Correspondingly, the blank includes the fast-growing wood blank obtained by completely drying the impregnated fast-growing wood floor wool (resin is completely cured) and applying glue or incompletely drying (resin is not completely cured), and the impregnated bamboo floor wool is completely dried. (The resin is fully cured) and coated with glue or incompletely dried (The resin is not completely cured) The bamboo blank obtained. Correspondingly, fast-growing material blanks are combined to obtain a fast-growing material blank, bamboo blanks are assembled to obtain a bamboo blank, and fast-growing material blanks and bamboo blanks are alternately assembled to obtain a composite blank. Correspondingly, fast-growing wood floor blanks, bamboo floor blanks, and composite floor blanks can be obtained by hot-pressing or cold-pressing fast-growing wood blanks, bamboo floor blanks, and composite floor blanks. Of course, fast-growing wood floor blanks can also be obtained by directly hot-pressing or cold-pressing the thicker fast-growing wood floor blanks without forming a billet. Correspondingly, fast-growing wood floor blanks, bamboo floor blanks, and composite floor blanks are subjected to subsequent machining to obtain fast-growing wood impregnated compressed laminated floors, bamboo impregnated compressed laminated floors, and composite impregnated compressed laminated floors.

The above-mentioned manufacturing method of impregnated compressed laminated flooring is to cut the fast-growing wood into plates and adopt regular hexagonal or regular octagonal sawing method; that is, make the fast-growing wood log into the largest regular hexagonal prism or regular octagonal prism; align the regular hexagonal prism or regular octagonal The plate is obtained by sawing the prism, and each sawing surface is parallel to one side of the regular hexagonal prism or regular octagonal prism during sawing. Advantages of regular hexagonal or regular octagonal sawing method: high yield rate, at least 65%. Since the two opposite faces of the regular hexagon or the regular octagon are parallel, it is very convenient to machine the log to obtain the regular hexagonal prism or the regular octagonal prism. Since each sawing surface is parallel to one side of the regular hexagonal prism or regular octagonal prism, the positioning is simple and accurate, the sawing is convenient, and the parallelism of the two sides of the obtained plate can be guaranteed. The bevel angle of the plate obtained by regular hexagonal sawing method is 60°, and the bevel angle of plate obtained by regular octagonal sawing method is 45° and 90° (which can be regarded as straight edge); , it is only necessary to assemble the width of the boards with the same bevel angle, so the operation of board width is simple and convenient. It is easy to distinguish between string-sawn boards and quarter-sawn boards. The boards obtained by the regular hexagonal sawing method have 60° oblique edges. The smaller widths are string-sawn boards, and the larger widths are quarter-sawn boards. The boards obtained by sawing under the regular octagonal method have 45° beveled edges are all string-sawn lumber, and the parts without beveled edges (or 90° bevel angle) are quarter-sawn lumber. The boards are automatically roughly classified, which is easy to distinguish and select, and is conducive to further widening of the boards.

The above-mentioned manufacturing method of impregnated compressed laminated flooring has the following steps of width making before impregnation: the fast-growing wood floor wool is horizontally widened to obtain the width of the fast-growing wood floor wool. The same two pieces of fast-growing floor wool are put together, and the boards obtained by sawing the regular hexagon or regular octagon are divided into quarter-sawn boards and string-sawn boards. The cutting boards are combined; the adhesives used for the width are resorcinol formaldehyde resin, phenol modified resorcinol formaldehyde resin, and polyurethane adhesive. In this way, the materials and structures of the fast-growing floor wools in the same piece of wide-spread fast-growing wood floor wool are basically the same, and the possibility of deformation of the wide-spread fast-growing wood floor wool is small, and there is basically no warping. Of course, the prepared fast-growing wood impregnated compressed laminated floor will not be deformed and warped.

The above-mentioned manufacturing method of impregnated and compressed reinforced flooring comprises the steps of combining the fast-growing wood floor wool with a thickness of 6-10 mm in width; the step of laminating the fast-growing material blanks to obtain the fast-growing wood blanks is also included when forming the blanks, and the fast-growing material blanks and bamboo The blanks are alternately composited and laminated to form a composite blank; hot pressing or cold pressing also includes the step of cold pressing or hot pressing the fast growing wood blank to obtain a fast growing wood floor blank, and performing a composite blank on the composite blank. The step of obtaining composite floor blank by cold pressing or hot pressing.

The manufacturing method of the above-mentioned impregnated compression laminated floor, when assembling the blanks, the number of layers should be at least three layers, with the central plane in the thickness direction of the blank as the plane of symmetry, the layers of the fast-growing material blanks are symmetrical up and down, and each of the layers of the symmetrical fast-growing material blanks is formed. Fast-growing floor wool with the same width and bevel angles on both sides. The up-and-down symmetrical structure of the green body makes the obtained impregnated compression reinforced floor less likely to be deformed and basically free from warping.

The above-mentioned manufacturing method of impregnated and compressed reinforced flooring is to perform cold pressing on the base formed by drying the impregnated floor wool until the resin is completely cured and then glued and assembled. During cold pressing, the pressure is 1.5-6MPa, and the compression rate is 5-25%. , time 60-120min; after impregnation, the floor wool is dried until the resin is not fully cured to form a blank with a thickness of ≤5cm, which is formed by hot pressing in a hot press, with a hot pressing temperature of 150-250 °C and a hot pressing pressure of 2 -6MPa, compression rate 10-50%, hot-pressing time 10-50min; after impregnating the floor wool and drying the blanks until the resin is not completely cured, the blanks with a thickness of >5cm are hot-pressed in a high-frequency press. High frequency oscillation power 10-50kW, pressure 2-6MPa, compression rate 10-50%, hot pressing time 10-50min, pressure holding and cooling time 30-60min.

In the above-mentioned manufacturing method of impregnated and compressed laminated flooring, the thickness of the fast-growing floor wool is greater than or equal to 20mm; after the fast-growing wood floor wool is impregnated, it is dried until the resin is not completely cured to obtain a fast-growing material blank, and then the fast-growing material blank is hot-pressed in a hot press for molding ; When hot-pressing, the hot-pressing temperature is 150-250°C, the pressure is 2-6MPa, the compression rate is 10-50%, and the hot-pressing time is 10-50min.

The above-mentioned manufacturing method of impregnated compressed laminate flooring, when hot pressing: pressure 2-6MPa, compression ratio 10-50%, hot pressing time 10-50min; when cold pressing: pressure 2-6MPa, compression ratio 10-25%, time 60-120min.

The above-mentioned manufacturing method of impregnated compressed reinforced flooring, the fast-growing wood is pine, Chinese fir, poplar, bamboo willow, eucalyptus and eucalyptus with a diameter grade of more than 8cm; the bamboo material is moso bamboo with a diameter grade of more than 8cm; in step a, the floor The wool is dried to a moisture content of 6-14%; in step c, the amount of glue applied on one side of the adhesive is 100-300g/m ² . Floor wool drying methods include ordinary kiln drying, vacuum kiln drying, flat plate hot pressing drying, etc.

Generally, the fast-growing small-diameter timber (with a diameter of 8-20cm) is made by regular hexagonal sawing, and the fast-growing large-diameter timber (with a diameter of more than 20cm) is produced by regular octagonal sawing. The thickness of small-diameter timber is mainly 8mm (hereinafter referred to as thin plate), the length is mainly 930mm, and the width is not limited; the thickness of large-diameter timber is mainly 23mm (hereinafter referred to as thick plate), and the length is mainly 930mm. The width is mainly 130mm. The splitting of bamboo is according to existing method (made as thin plate).

Fast-growing small-diameter wood and bamboo boards (thin boards) that have been planed and thickened need to be widthwise assembled, and the width of the joint width is equal to the length of the rough board. Adhesives used by Pinkuan include resorcinol formaldehyde resin, phenol modified resorcinol formaldehyde resin, polyurethane adhesive and other adhesives for bonding structural materials. The sizing amount is 100-300g/m ² . Fast-growing large-diameter slabs (thick slabs) that have been planed and calibrated do not need to be widened.

The widened sheets and thick sheets are placed in an impregnation tank for impregnation with low-molecular phenolic resin or melamine formaldehyde resin, and the impregnation tank has the functions of vacuuming, pressurizing and heating. Put the plate in the impregnation tank, seal the impregnation tank, evacuate to the specified vacuum degree, and keep the vacuum state for a certain period of time, automatically suck the impregnation resin into the impregnation tank by vacuum until the impregnation resin is full of the tank, and then pressurize the impregnation liquid and the plate in it For a certain period of time, heat the impregnated resin at a low temperature during pressurization until the plate reaches the required impregnation depth on the cross section, that is, partially or fully impregnated, then pump out the impregnated resin, then vacuumize and heat to quickly remove the impurities in the plate. Moisture, in order to facilitate the next step of drying. The above steps can be repeated until the desired degree of impregnation is achieved.

In the above-mentioned manufacturing method, after impregnation, the fast-growing wood small-diameter grade or bamboo board (thin plate) is dried to a specific resin content (50-80%, multiple impregnations can be used to achieve a specific resin content) or dried to complete curing. After impregnation, the large-diameter plates (thick plates) are dried to a specific resin content (50-80%, and can be impregnated multiple times to achieve a specific resin content). The drying method includes ordinary kiln drying, vacuum kiln drying, flat plate hot pressing drying and the like.

In the above manufacturing method, fast-growing small-diameter wood and bamboo boards (thin boards) dried to a specific resin content do not need to be glued, and fast-growing small-diameter woods and bamboo boards (thin boards) dried to complete curing need to be glued. Fast-growing large-diameter lumber (thick plate) dried to a specific resin content does not require glue application.

The above-mentioned manufacturing method, drying to fully cured fast-growing small-diameter wood and bamboo boards (thin boards) coated with adhesives include resorcinol-formaldehyde resin, phenol-modified resorcinol-formaldehyde resin, polyurethane adhesive and other adhesives for bonding structural materials. The amount of glue is 100-300g/m ² (single side).

In the above-mentioned manufacturing method, the impregnated plank (thin plate) made of fast-growing small-diameter wood and bamboo needs to be assembled. The method of forming blanks includes forming along the grain, forming blanks perpendicular to each other, or forming blanks at a specific angle between grains. The number of blanks is 3 layers, including alternate composite blanks of fast-growing wood and bamboo. Or more than 9 layers of blanks along the grain, including alternate composite blanks of fast-growing wood and bamboo. Plates (thick plates) made of fast-growing large-diameter materials do not need to be assembled.

In the above manufacturing method, the fast-growing small-diameter wood and bamboo boards (thin boards) dried to a specific resin content are composed of three layers of slabs, and the fast-growing large-diameter boards (thick boards) dried to a specific resin content are placed in a hot press. The thickness of oak wood is specified to be thick, the unit pressure is 2-6MPa, the compression rate is 10-50%, the hot pressing time is 10-50min, and the pressure holding and cooling time is 30-60min. Fast-growing small-diameter wood and bamboo boards (thin boards) dried to a specific resin content are placed in a high-frequency press for hot pressing with a high-frequency oscillation power of 10-50kW. The thickness of the oak wood is specified to be thick, and the unit pressure is 2- 6MPa, compression rate 10-50%, hot pressing time 10-50min, holding pressure cooling time 30-60min. Fast-growing small-diameter wood and bamboo boards (thin boards) assembled with glue (3 layers or more than 9 layers) after drying until the resin is completely cured are cold-pressed. 25%, time 60-120min. The floor pressing method of the bamboo-wood composite blank is the same as that of fast-growing wood or bamboo.

In the above-mentioned manufacturing method, the hot-pressed or cold-pressed sheet composite (3 layers or more than 9 layers) slab is re-manufactured to obtain floors of various shapes and specifications.

The above-mentioned manufacturing methods also include groove-and-groove processing (or flat-cutting), planing, and finishing (not painting).

In the above-mentioned manufacturing method, the press plate used for the above-mentioned hot pressing or cold pressing requires a smooth and flat surface.

Description of drawings

Fig. 1 is the process flow diagram of preparing fast-growing wood floor blank with fast-growing small-diameter wood;

Fig. 2 is the process flow diagram of preparing fast-growing wood floor blank with fast-growing large-diameter wood;

Fig. 3 is the process flow diagram of preparing bamboo floor blank with bamboo;

Fig. 4 is a schematic diagram of the regular hexagon sawing method;

Fig. 5 is a schematic diagram of sawing under a regular octagon;

FIG. 6 is a schematic diagram showing the width of the plates 2 .

FIG. 7 is a schematic diagram showing the width of the plates 12 .

Fig. 8 is a schematic diagram showing the width of boards 15.

Fig. 9 is a schematic diagram of forming blanks along the grain.

Fig. 10 is a schematic diagram of vertical blank assembly.

Fig. 11 is a schematic diagram of making a regular hexagonal prism from fast-growing small-diameter timber.

Detailed ways

The specific features and technical means of the present invention will be further described below in conjunction with the accompanying drawings.

See Figure 1, the process flow chart of preparing fast-growing wood floor blanks from fast-growing small-diameter wood (pine, fir, poplar, eucalyptus, bamboo willow, and meranti); including the truncation of fast-growing wood, the regular hexagonal wood production method is used Obtain the plate (thin plate), dry, planed to a certain thickness, widened, vacuum, pressurized, and then vacuum impregnated, completely dried and glued or incompletely dried, billet assembled, hot pressed or cold pressed and other steps.

See Figure 2, the process flow chart of preparing fast-growing wood floor blanks from fast-growing large-diameter wood (pine, fir, poplar, eucalyptus, bamboo willow, and meranti); including the truncation of fast-growing wood, it is made by regular octagonal wood production method The material is obtained as a plate (thick plate), dried, planed to a certain thickness, vacuumed, pressurized, vacuum impregnated, incompletely dried, hot pressed and other steps. the

Referring to Fig. 3, the process flow chart of preparing fast-growing wood floor blanks with bamboo; the bamboo is cut off and divided longitudinally, plasticized and flattened, dried, planed to a fixed thickness, and then impregnated with low-molecular resin (phenolic resin or melamine Formaldehyde resin), completely dry and glued or incompletely dry, forming blanks, hot pressing or cold pressing and other steps.

The floor blank is finished by sanding, thickness determination and tongue and groove (or flat) processing.

Referring to the regular hexagonal sawing method shown in Figures 4 and 11, the fast-growing timber log 19 is made into the largest regular hexagonal prism 1; the regular hexagonal prism 1 is sawed to obtain a plate 2, and each sawing surface 3 is consistent with the regular hexagonal prism 1 during sawing. One side of the prism is parallel. The included angles between the oblique edges 4 on both sides of the obtained plate 2 and the horizontal plane are both 60°.

Referring to the regular octagonal sawing method shown in Figure 5 (and refer to Figure 11), the fast-growing log is made into the largest regular octagonal prism 11; the regular octagonal prism 11 is sawed to obtain two kinds of boards, and each sawing surface is sawn. 13 are all parallel to one side of the regular octagonal prism. The included angles between the oblique edges 14 on both sides of the obtained plate 12 and the horizontal plane are 45°, and the included angles between the oblique edges 16 on both sides of the obtained another type of plate 15 and the horizontal plane are 90°.

See Figure 6-8 for the schematic diagram of width-gathering. When the fast-growing wood floor wool (boards 2, 12, and 15 are dried and planed to a certain thickness) is horizontally width-gathered, the two sides with the same width and bevel angles A piece of fast-growing wood floor wool is combined, string-sawn boards are combined with string-sawn boards, and quarter-sawn boards are combined with quarter-sawn boards. For logs with the same diameter, according to the sawing method of the regular hexagon, the volume of the obtained regular hexagonal prism is basically the same. For logs with the same diameter, according to the regular octagonal sawing method, the volume of the obtained regular octagonal prism is basically the same. The obtained board has a large width and straight edges on both sides. plate. Therefore, according to the width of the board, the width can basically be combined with the string-sawn board and the string-sawn board, and the quarter-sawn board and the quarter-sawn board.

Example 1

Take the fast-growing fir with a diameter of more than 20cm, cut it to the corresponding length according to the bending state of the wood, and use the regular octagonal sawing method to saw it into plates with a thickness of 23mm, a length of 93cm, and a width of 13cm (the output rate can be up to 65%), see Figure 5, dry to a moisture content of about 12%, planed to a thickness of 22mm.

Put the 93cm (length) × 13cm (width) × 22mm (thick) plate in the impregnation tank, seal the impregnation tank, vacuumize, vacuum degree 0.06MPa, vacuum time 2h, use vacuum to fill the impregnation tank with low molecular phenolic resin, The solid content of the resin is 45%, pressurize the tank to 1.5MPa, and raise the temperature at the same time, keep the liquid temperature in the tank at 35-40°C, hold the pressure for 4 hours, release the pressure, extract the impregnated resin from the tank, and then seal the tank Vacuum again, the vacuum degree is 0.06MPa, after the vacuum time is 2h, the pressure is released.

Place the impregnated board in a drying kiln and dry to a resin content of 65%.

The slab dried to a resin content of 65% is placed in a hot press for hot pressing, the thickness of the oak wood is specified, the hot pressing temperature is 180°C, the unit pressure is 2 MPa, the compression rate is 10%, and the hot pressing time is 20 minutes. After 24 hours of health preservation after pressure relief, you can enter the follow-up process related to floor processing.

The mechanical properties of this floor are tested, the density is 0.67g/cm ³ , the static bending strength (MOR) is 154MPa, the elastic modulus (MOE) is 15GPa, the nail holding force is 1500N, and the water absorption thickness expansion rate is 1.2%. Combustible, mildew-proof, anti-corrosion, insect-proof performance, and can be used directly on the outdoor floor without painting.

Example 2

Take the diameter-grade fast-growing eucalyptus wood with a diameter of 20 cm or more, cut it to the corresponding length according to the bending state of the wood, and use the regular octagonal sawing method to saw it into boards with a thickness of 23 mm, a length of 93 cm, and a width of 13 cm. It can reach more than 65%), see Figure 5, dry to about 12% moisture content, planed to a thickness of 22mm.

Put the 93cm (length) × 13cm (width) × 22mm (thick) plate in the impregnation tank, seal the impregnation tank, vacuumize, vacuum degree 0.08MPa, vacuum time 4h, use vacuum to fill the impregnation tank with low molecular weight melamine formaldehyde resin , the solid content of the resin is 50%, pressurize the tank to 2.0MPa, raise the temperature at the same time, keep the liquid temperature in the tank at 35-40°C, hold the pressure for 5 hours, release the pressure, extract the impregnated resin from the tank, and then seal the tank The body is evacuated again, the vacuum degree is 0.06MPa, after the vacuum time is 3h, the pressure is released.

Place the impregnated board in a drying kiln and dry to a resin content of 75%.

The slab dried to a resin content of 75% is placed in a hot press for hot pressing, the thickness of the oak wood is specified, the hot pressing temperature is 160°C, the unit pressure is 3 MPa, the compression ratio is 35%, and the hot pressing time is 20 minutes. After 24 hours of health preservation after pressure relief, you can enter the follow-up process related to floor processing.

The mechanical properties of this floor are tested, the density is 1.1g/cm ³ , the static bending strength (MOR) is 184MPa, the elastic modulus (MOE) is 19GPa, the nail holding force is 1800N, and the water absorption thickness expansion rate is 1.1%. Combustible, mildew-proof, anti-corrosion, and insect-proof properties, and can be directly used for indoor floors with or without coating.

Example 3

Take the small-diameter fast-growing pine wood with a diameter of 8-20cm, cut it to a length of 93cm according to the bending state of the wood, and use the regular hexagonal sawing method to saw it into a 9mm-thick beveled board (the yield rate can reach more than 65%). As shown in Figure 11 and Figure 4, dry to a moisture content of about 12%, planed to a thickness of 8mm, the same size and shape of the end surface with beveled edges are combined to make width, basically the combination of string-sawn boards and string-sawn boards, quarter-sawn boards and Quarter-sawn board assembly, the width of the assembly is 93cm, the adhesive for the assembly width is resorcinol formaldehyde resin, the glue amount is 150g/m ² , the width is assembled in the assembly machine, the cold pressing time is 60min, and it can be used after 24 hours The next step. See Figure 6 for the method of spelling (oblique edge spelling).

Put the boards with a width of 93cm (length) × 93cm (width) × 8mm (thickness) in the impregnation tank, seal the impregnation tank, vacuumize, the vacuum degree is 0.06MPa, and after the vacuum time is 2 hours, use the vacuum to fill the impregnation tank Low-molecular phenolic resin, resin solid content 50%, pressurize the tank to 1.5MPa, raise the temperature at the same time, keep the liquid temperature in the tank at 35-40°C, hold the pressure for 4 hours, release the pressure, and extract the impregnated resin from the tank , and then seal the tank and then vacuumize, the vacuum degree is 0.06MPa, and after the vacuum time is 2h, the pressure is released.

Place the impregnated board in a drying kiln and dry to a resin content of 65%.

The slabs dried to a resin content of 65% are assembled in 20 layers, the number of laminated layers is 3 or 9 layers, and the method of assembling the blanks is along the grain (the wood grains of the two adjacent layers of slabs 20 are parallel, see Fig. 9), or the textures are perpendicular to each other to assemble blanks (the wood textures of two adjacent layers of slabs 20 are vertical, see FIG. 10 ). Finally, a square material with a total size of 93 cm (length)×93 cm (width)×24 (or 72) mm (thickness) is formed.

Place the assembled billets in a high-frequency press for hot pressing, with a high-frequency oscillation power of 15kW, a specified thickness of oak wood, a unit pressure of 2MPa, a compression ratio of 25%, a hot-pressing time of 20 minutes, and a pressure-holding and cooling time of 40 minutes. After 24 hours of health preservation after pressure relief, you can enter the follow-up process related to floor processing.

The mechanical properties of this floor are tested, the density is 0.77g/cm ³ , the static bending strength (MOR) is 144MPa, the elastic modulus (MOE) is 14GPa, the nail holding force is 1500N, and the water absorption thickness expansion rate is 1.2%. Combustible, mildew-proof, anti-corrosion, insect-proof performance, and can be used directly on the outdoor floor without painting.

Example 4

Take the small-diameter fast-growing pine wood with a diameter of 8-20cm, cut it to a length of 93cm according to the bending state of the wood, and use the regular hexagonal sawing method to saw it into a 9mm-thick beveled board (the yield rate can reach more than 65%). As shown in Figure 4, dry to a moisture content of about 10%, planed to a thickness of 8mm, and the same end surface size and shape with beveled edges are combined for width, basically as string-sawn boards and string-sawn boards, quarter-sawn boards and quarter-sawn boards. Assembling, the width of the panel is 93cm, the adhesive for the panel width is polyurethane adhesive, and the amount of glue applied is 130g/m ² . See Figure 6 for the method of spelling (oblique edge spelling).

Put the boards with a width of 93cm (length) × 93cm (width) × 8mm (thickness) in the impregnation tank, seal the impregnation tank, vacuumize, the vacuum degree is 0.06MPa, and after the vacuum time is 2 hours, use the vacuum to fill the impregnation tank Low-molecular melamine formaldehyde resin, resin solid content 50%, pressurize the tank to 1.5MPa, raise the temperature at the same time, keep the liquid temperature in the tank at 35-40°C, hold the pressure for 4 hours, release the pressure, impregnate the tank with resin Pump out, then seal the tank and then vacuumize, the vacuum degree is 0.06MPa, after the vacuum time is 2h, the pressure is released.

Place the impregnated board in a drying kiln to dry to a resin content of 70%.

The slabs that have been dried to a resin content of 65% are laminated and assembled, and the number of laminated layers is 3 or 9 layers. The method of forming blanks is along the grain (see Figure 9), or the grains are perpendicular to each other (see Figure 10 ). Finally, a square material with a total size of 93 cm (length)×93 cm (width)×24 (or 72) mm (thickness) is formed.

Place the assembled billets in a high-frequency press for hot pressing, with a high-frequency oscillation power of 20kW, a specified thickness of oak wood, a unit pressure of 3MPa, a compression rate of 40%, a hot-pressing time of 30 minutes, and a holding and cooling time of 40 minutes. After 24 hours of health preservation after pressure relief, you can enter the follow-up process related to floor processing.

The mechanical properties of this floor are tested, the density is 0.81g/cm ³ , the static bending strength (MOR) is 147MPa, the elastic modulus (MOE) is 13GPa, the nail holding force is 1400N, and the water absorption thickness expansion rate is 1.2%. Flammable, mildew-proof, anti-corrosion, and insect-proof properties, and can be directly used for indoor floors without painting.

Example 5

Take the small-diameter fast-growing pine wood with a diameter of 8-20cm, cut it to a length of 93cm according to the bending state of the wood, and use the regular hexagonal sawing method to saw it into a 9mm-thick beveled board (the yield rate can reach more than 65%). As shown in Figure 4, dry to a moisture content of about 11%, planed to a thickness of 8mm, and the same end surface size and shape with beveled edges are combined for width, which is basically a combination of string-sawn boards and string-sawn boards, and quarter-sawn boards and quarter-sawn boards. Assembling, the width of the panel is 93cm, the adhesive is phenol modified resorcinol formaldehyde resin, the glue amount is 150g/m ² , the width is assembled in the panel machine, the cold pressing time is 60min, and it can be used after 24 hours The next step. See Figure 6 for the method of spelling (oblique edge spelling).

Put the boards with a width of 93cm (length) × 93cm (width) × 8mm (thickness) in the impregnation tank, seal the impregnation tank, vacuumize, the vacuum degree is 0.08MPa, and after the vacuum time is 3 hours, use the vacuum to fill the impregnation tank Low-molecular-weight phenolic resin, the resin solid content is 45%, pressurize the tank to 1.5MPa, raise the temperature at the same time, keep the liquid temperature in the tank at 35-40°C, hold the pressure for 4 hours, release the pressure, and extract the impregnated resin from the tank , and then seal the tank and then vacuumize, the vacuum degree is 0.08MPa, and after the vacuum time is 3h, the pressure is released.

Place the impregnated board in a drying kiln to dry until the resin is completely cured.

Glue is applied on the slab that the impregnated resin is completely cured, the adhesive applied is phenol modified resorcinol formaldehyde resin, and the amount of glue applied is 130g/m ² .

The coated rubber slabs are laminated and assembled, and the number of laminated layers is 3 or 9 layers. The method of forming blanks is along the grain (see Figure 9), or the textures are perpendicular to each other (see Figure 10). Finally, a square material with a total size of 93 cm (length)×93 cm (width)×24 (or 72) mm (thickness) is formed.

Put the assembled billets into a cold press for cold pressing, with a unit pressure of 1.5 MPa, a compression rate of 5%, and a cold pressing time of 1 h. After 24 hours of health preservation after pressure relief, you can enter the follow-up process related to floor processing.

The mechanical properties of this floor are tested, the density is 0.65g/cm ³ , the static bending strength (MOR) is 164MPa, the elastic modulus (MOE) is 17GPa, the nail holding force is 1300N, and the water absorption thickness expansion rate is 1.5%. Flameproof, anti-mildew, anti-corrosion, anti-insect properties, and can be directly used for outdoor floors with or without coating.

Example 6

Take small-diameter grade fast-growing eucalyptus with a diameter of 8-20cm, cut it to a length of 93cm according to the bending state of the wood, and use the regular hexagonal sawing method to saw it into a slanted board with a thickness of 9mm (the yield can reach more than 65%) , as shown in Figure 4, dried to about 11% moisture content, planed to a thickness of 8mm, the same size and shape of the end surface with beveled board width, basically the combination of string-sawn boards and string-sawn boards, quarter-sawn boards and quarter-sawn boards Board assembly, the width of the board is 93cm, the adhesive for the width is polyurethane adhesive, the glue amount is 150g/m ² , the width is assembled in the board machine, the cold pressing time is 60min, and it can be used in the next process after 24 hours. See Figure 6 for the method of spelling (oblique edge spelling).

Put the boards with a width of 93cm (length) × 93cm (width) × 8mm (thickness) in the impregnation tank, seal the impregnation tank, vacuumize, the vacuum degree is 0.08MPa, and after the vacuum time is 3 hours, use the vacuum to fill the impregnation tank Low-molecular melamine formaldehyde resin, resin solid content 50%, pressurize the tank to 1.5MPa, raise the temperature at the same time, keep the liquid temperature in the tank at 35-40°C, hold the pressure for 4 hours, release the pressure, impregnate the tank with resin Pump out, then seal the tank and then vacuumize, the vacuum degree is 0.08MPa, after the vacuum time is 3h, the pressure is released.

Place the impregnated board in a drying kiln to dry until the resin is completely cured.

Glue is applied on the fully cured slab of the impregnated resin, the adhesive applied is polyurethane adhesive, and the amount of applied adhesive is 130g/m ² .

The coated rubber slabs are laminated and assembled, and the number of laminated layers is 3 or 9 layers. The method of forming blanks is along the grain (see Figure 9), or the textures are perpendicular to each other (see Figure 10). Finally, a square material with a total size of 93 cm (length)×93 cm (width)×24 (or 72) mm (thickness) is formed.

Put the assembled board into a cold press for cold pressing, the unit pressure is 3.5MPa, the compression rate is 20%, and the cold pressing time is 1h.

After 24 hours of health preservation after pressure relief, you can enter the follow-up process related to floor processing.

The mechanical properties of this floor are tested, the density is 1.05g/cm ³ , the static bending strength (MOR) is 184MPa, the elastic modulus (MOE) is 19GPa, the nail holding force is 1600N, and the water absorption thickness expansion rate is 1.1%. Flammable, mildew-proof, anti-corrosion, and insect-proof properties, and can be directly used for indoor floors without painting.

Example 7

Take moso bamboo with a diameter of 12-18cm, cut it to a length of 120cm according to the diameter change, divide it into 5.5cm wide, plasticize, flatten, dry to a moisture content of about 12%, planed to a width of 5cm, and a thickness of 5cm 1cm plate. Horizontal splicing width, the splicing width is 120cm, the adhesive is resorcinol formaldehyde resin, the glue amount is 150g/m ² , the width is spliced in the splicing machine, the cold pressing time is 60min, and it can be used in the next process after 24 hours . Refer to Figure 8 for the method of spelling width.

Put the boards with a width of 120cm (length) × 120cm (width) × 1cm (thickness) in the impregnation tank, seal the impregnation tank, vacuumize, the vacuum degree is 0.06MPa, and after the vacuum time is 2 hours, use the vacuum to fill the impregnation tank Low-molecular phenolic resin, resin solid content 50%, pressurize the tank to 1.5MPa, raise the temperature at the same time, keep the liquid temperature in the tank at 35-40°C, hold the pressure for 4 hours, release the pressure, and extract the impregnated resin from the tank , and then seal the tank and then vacuumize, the vacuum degree is 0.06MPa, and after the vacuum time is 2h, the pressure is released.

Place the impregnated board in a drying kiln to dry to a resin content of 65%.

The slabs that have been dried to a resin content of 65% are laminated and assembled, and the number of laminated layers is 3 or 9 layers. The method of forming blanks is along the grain (see Figure 9), or the grains are perpendicular to each other (see Figure 10 ). Finally, a square material with a total size of 93cm (length)×93cm (width)×3 (or 9)cm (thickness) is formed.

Place the assembled billets in a high-frequency press for hot pressing, with a high-frequency oscillation power of 20kW, a specified thickness of oak wood, a unit pressure of 3.5MPa, a compression rate of 40%, a hot-pressing time of 30 minutes, and a holding and cooling time of 40 minutes. After 24 hours of health preservation after pressure relief, you can enter the follow-up process related to floor processing.

The mechanical properties of this floor are tested, the density is 0.89g/cm ³ , the static bending strength (MOR) is 174MPa, the elastic modulus (MOE) is 17GPa, the nail holding force is 1500N, and the water absorption thickness expansion rate is 1.2%. Combustible, mildew-proof, anti-corrosion, insect-proof performance, and can be used directly on the outdoor floor without painting.

Example 8

Take moso bamboo with a diameter of 12-18cm, cut it to a length of 120cm according to the diameter change, divide it into 5.5cm wide, plasticize, flatten, dry to a moisture content of about 12%, planed to a width of 5cm, and a thickness of 5cm 1cm plate. Horizontal splicing width, the width of the splicing board is 120cm, the adhesive is polyurethane adhesive, the glue amount is 150g/m ² , the width is spliced in the splicing machine, the cold pressing time is 60min, and it can be used in the next process after 24 hours. Refer to Figure 8 for the method of spelling width.

Put the boards with a width of 120cm (length) × 120cm (width) × 1cm (thickness) in the impregnation tank, seal the impregnation tank, vacuumize, the vacuum degree is 0.06MPa, and after the vacuum time is 2 hours, use the vacuum to fill the impregnation tank Low-molecular melamine formaldehyde resin, resin solid content 50%, pressurize the tank to 1.5MPa, raise the temperature at the same time, keep the liquid temperature in the tank at 35-40°C, hold the pressure for 4 hours, release the pressure, impregnate the tank with resin Pump out, then seal the tank and then vacuumize, the vacuum degree is 0.06MPa, after the vacuum time is 2h, the pressure is released.

Place the impregnated board in a drying kiln and dry to a resin content of 70%.

The slabs dried to a resin content of 65% are laminated and assembled, the number of laminated layers is 3 layers, and the method of forming blanks is along the grain (see Figure 9), or the grains are perpendicular to each other (see Figure 10). Finally, a square material with a total size of 120cm (length)×120cm (width)×3 (or 9)cm (thickness) is formed.

Place the assembled billets in a high-frequency press for hot pressing, with a high-frequency oscillation power of 20kW, a specified thickness of oak wood, a unit pressure of 3MPa, a compression rate of 25%, a hot-pressing time of 30 minutes, and a pressure-holding and cooling time of 40 minutes. After 24 hours of health preservation after pressure relief, you can enter the follow-up process related to floor processing.

The mechanical properties of this floor are tested, the density is 0.80g/cm ³ , the static bending strength (MOR) is 157MPa, the elastic modulus (MOE) is 14GPa, the nail holding force is 1500N, and the water absorption thickness expansion rate is 1.2%. Flammable, mildew-proof, anti-corrosion, and insect-proof properties, and can be directly used for indoor floors without painting.

Example 9

Take moso bamboo with a diameter of 12-18cm, cut it to a length of 120cm according to the diameter change, divide it into 5.5cm wide, plasticize, flatten, dry to a moisture content of about 12%, planed to a width of 5cm, and a thickness of 5cm 1cm plate. Horizontal splicing width, the splicing width is 120cm, the adhesive is resorcinol formaldehyde resin, the glue amount is 150g/m ² , the width is spliced in the splicing machine, the cold pressing time is 60min, and it can be used in the next process after 24 hours . Refer to Figure 8 for the method of spelling width.

Put the boards with a width of 120cm (length) × 120cm (width) × 1cm (thickness) in the impregnation tank, seal the impregnation tank, vacuumize, the vacuum degree is 0.08MPa, after the vacuum time is 3 hours, use the vacuum to fill the impregnation tank Low-molecular-weight phenolic resin, the resin solid content is 45%, pressurize the tank to 1.5MPa, raise the temperature at the same time, keep the liquid temperature in the tank at 35-40°C, hold the pressure for 4 hours, release the pressure, and extract the impregnated resin from the tank , and then seal the tank and then vacuumize, the vacuum degree is 0.08MPa, and after the vacuum time is 3h, the pressure is released.

Place the impregnated board in a drying kiln to dry until the resin is completely cured.

Glue is applied on the slab that the impregnated resin is completely cured, the adhesive applied is phenol modified resorcinol formaldehyde resin, and the amount of glue applied is 130g/m ² .

The coated rubber slabs are laminated and assembled, and the number of laminated layers is 3 or 9 layers. The method of forming blanks is along the grain (see Figure 9), or the textures are perpendicular to each other (see Figure 10). Finally, a square material with a total size of 120cm (length)×120cm (width)×3 (or 9)cm (thickness) is formed.

Put the assembled billets into a cold press for cold pressing, the unit pressure is 1.5MPa, the compression rate is 5%, and the cold pressing time is 1h. After 24 hours of health preservation after pressure relief, you can enter the follow-up process related to floor processing.

The mechanical properties of this floor are tested, the density is 0.65g/cm ³ , the static bending strength (MOR) is 164MPa, the elastic modulus (MOE) is 17GPa, the nail holding force is 1300N, and the water absorption thickness expansion rate is 1.5%. Combustible, mildew-proof, anti-corrosion, insect-proof performance, and can be used directly on the outdoor floor without painting.

Example 10

Take moso bamboo with a diameter of 12-18cm, cut it to a length of 120cm according to the diameter change, divide it into 5.5cm wide, plasticize, flatten, dry to a moisture content of about 12%, planed to a width of 5cm, and a thickness of 5cm 1cm plate. Horizontal splicing width, the width of the splicing board is 120cm, the adhesive is polyurethane adhesive, the glue amount is 150g/m ² , the width is spliced in the splicing machine, the cold pressing time is 60min, and it can be used in the next process after 24 hours. Refer to Figure 8 for the method of spelling width.

Put the boards with a width of 120cm (length) × 120cm (width) × 1cm (thickness) in the impregnation tank, seal the impregnation tank, vacuumize, the vacuum degree is 0.08MPa, after the vacuum time is 3 hours, use the vacuum to fill the impregnation tank Low-molecular melamine formaldehyde resin, resin solid content 50%, pressurize the tank to 1.5MPa, raise the temperature at the same time, keep the liquid temperature in the tank at 35-40°C, hold the pressure for 4 hours, release the pressure, impregnate the tank with resin Pump out, then seal the tank and then vacuumize, the vacuum degree is 0.08MPa, after the vacuum time is 3h, the pressure is released.

Place the impregnated board in a drying kiln to dry until the resin is completely cured.

Glue is applied on the fully cured slab of the impregnated resin, the adhesive applied is polyurethane adhesive, and the amount of applied adhesive is 130g/m ² .

The coated rubber slabs are laminated and assembled, and the number of laminated layers is 3 or 9 layers. The method of forming blanks is along the grain (see Figure 9), or the textures are perpendicular to each other (see Figure 10). Finally, a square material with a total size of 120cm (length)×120cm (width)×3 (or 9)cm (thickness) is formed.

Put the assembled board into a cold press for cold pressing, the unit pressure is 4MPa, the compression rate is 25%, and the cold pressing time is 1h.

After 24 hours of health preservation after pressure relief, you can enter the follow-up process related to floor processing.

The mechanical properties of this floor are tested, the density is 1.05g/cm ³ , the static bending strength (MOR) is 184MPa, the elastic modulus (MOE) is 19GPa, the nail holding force is 1600N, and the water absorption thickness expansion rate is 1.1%. Flammable, mildew-proof, anti-corrosion, and insect-proof properties, and can be directly used for indoor floors without painting.

Example 11

Take moso bamboo with a diameter of 12-18cm, cut it to a length of 120cm according to the diameter change, divide it into 5.5cm wide, plasticize, flatten, dry to a moisture content of about 12%, planed to a width of 5cm, and a thickness of 5cm 1cm plate. Horizontal splicing width, the splicing width is 120cm, the adhesive is resorcinol formaldehyde resin, the glue amount is 150g/m ² , the width is spliced in the splicing machine, the cold pressing time is 60min, and it can be used in the next process after 24 hours . Refer to Figure 8 for the method of spelling width. Take small-diameter fast-growing meranti with a diameter of 8-20cm, cut it to a length of 120cm according to the bending state of the wood, and use the regular hexagonal sawing method to saw it into a 9mm-thick beveled board (the yield can reach more than 65%) , as shown in Figure 4, dried to about 11% moisture content, planed to a thickness of 8mm, the same size and shape of the end surface with beveled board width, basically the combination of string-sawn boards and string-sawn boards, quarter-sawn boards and quarter-sawn boards Board assembly, the width of the board is 120cm, the adhesive for the width is polyresorcinol formaldehyde resin, the glue amount is 150g/m ² , the width is assembled in the board machine, the cold pressing time is 60min, and it can be used after 24 hours one step process. See Figure 6 for the method of spelling (oblique edge spelling).

Put the bamboo boards with a width of 120cm (length)×120cm (width)×1cm (thickness) and the fast-growing boards with a width of 120cm (length)×120cm (width)×8mm (thickness) in an impregnation tank, seal and impregnate Tank, vacuum, vacuum degree 0.06MPa, after vacuum time 2h, use vacuum to fill the impregnation tank with low-molecular phenolic resin, the resin solid content is 50%, pressurize the tank to 1.5MPa, and raise the temperature at the same time to keep the liquid in the tank The temperature is 35-40°C, the pressure holding time is 4 hours, and the pressure is released. The impregnated resin in the tank is drawn out, and then the tank is sealed and then vacuumed. The vacuum degree is 0.06MPa. After the vacuum time is 2 hours, the pressure is released.

Place the impregnated board in a drying kiln to dry to a resin content of 65%.

The slabs dried to a resin content of 65% are laminated and assembled, the number of laminated layers is 3 or 9 layers, wood-bamboo-wood or bamboo-wood-bamboo are assembled alternately, and the method of forming blanks is along the grain ( Refer to Figure 9), and the textures are vertical to each other (see Figure 10). Finally, a square material with a total size of 120cm (length) x 120cm (width) x 2.6 (2.8) (or 9 (8.2)) cm (thickness) is formed.

Place the assembled billets in a high-frequency press for hot pressing, with a high-frequency oscillation power of 20kW, a specified thickness of oak wood, a unit pressure of 4MPa, a compression rate of 40%, a hot-pressing time of 30 minutes, and a pressure-holding and cooling time of 40 minutes. After 24 hours of health preservation after pressure relief, you can enter the follow-up process related to floor processing.

The mechanical properties of this floor are tested, the density is 0.89g/cm ³ , the static bending strength (MOR) is 174MPa, the elastic modulus (MOE) is 17GPa, the nail holding force is 1500N, and the water absorption thickness expansion rate is 1.2%. Combustible, mildew-proof, anti-corrosion, insect-proof performance, and can be used directly on the outdoor floor without painting.

Example 12

Take moso bamboo with a diameter of 12-18cm, cut it to a length of 120cm according to the diameter change, divide it into 5.5cm wide, plasticize, flatten, dry to a moisture content of about 12%, planed to a width of 5cm, and a thickness of 5cm 1cm plate. Horizontal splicing width, the width of the splicing board is 120cm, the adhesive is polyurethane adhesive, the glue amount is 150g/m ² , the width is spliced in the splicing machine, the cold pressing time is 60min, and it can be used in the next process after 24 hours. Refer to Figure 8 for the method of spelling width. Take small-diameter fast-growing meranti with a diameter of 8-20cm, cut it to a length of 120cm according to the bending state of the wood, and use the regular hexagonal sawing method to saw it into a 9mm-thick beveled board (the yield can reach more than 65%) , as shown in Figure 4, dried to about 11% moisture content, planed to a thickness of 8mm, the same size and shape of the end surface with beveled board width, basically the combination of string-sawn boards and string-sawn boards, quarter-sawn boards and quarter-sawn boards Board assembly, the width of the board is 120cm, the adhesive for the width is polyurethane adhesive, the glue amount is 150g/m ² , the width is assembled in the board machine, the cold pressing time is 60min, and it can be used in the next process after 24 hours. See Figure 6 for the method of spelling (oblique edge spelling).

Put the bamboo boards with a width of 120cm (length)×120cm (width)×1cm (thickness) and the fast-growing boards with a width of 120cm (length)×120cm (width)×8mm (thickness) in an impregnation tank, seal and impregnate Tank, vacuuming, vacuum degree 0.06MPa, after vacuum time 2h, use vacuum to fill the impregnation tank with low molecular weight melamine formaldehyde resin, the resin solid content is 50%, pressurize the tank, the pressure is 1.5MPa, and raise the temperature at the same time to keep the temperature in the tank The temperature of the liquid is 35-40°C, the pressure holding time is 4 hours, the pressure is released, the impregnated resin is drawn out from the tank, and then the tank is sealed and then vacuumed, the vacuum degree is 0.06MPa, and the pressure is released after the vacuum time is 2 hours.

Place the impregnated board in a drying kiln and dry to a resin content of 70%.

The slabs that have been dried to a resin content of 65% are laminated and assembled, the number of laminated layers is 3 or 9 layers, wood-bamboo-wood is alternately assembled, and the method of assembly is along the grain (refer to Figure 9). The blanks are formed perpendicular to each other (refer to Figure 10). Finally, a square material with a total size of 120cm (length) x 120cm (width) x 2.6 (2.8) (or 9 (8.2)) cm (thickness) is formed.

Place the assembled billets in a high-frequency press for hot pressing, with a high-frequency oscillation power of 20kW, a specified thickness of oak wood, a unit pressure of 2.5MPa, a compression rate of 25%, a hot-pressing time of 30 minutes, and a pressure-holding and cooling time of 40 minutes. After 24 hours of health preservation after pressure relief, you can enter the follow-up process related to floor processing.

The mechanical properties of this floor are tested, the density is 0.81g/cm ³ , the static bending strength (MOR) is 157MPa, the elastic modulus (MOE) is 14GPa, the nail holding force is 1500N, and the water absorption thickness expansion rate is 1.2%. Flammable, mildew-proof, anti-corrosion, and insect-proof properties, and can be directly used for indoor floors without painting.

Example 13

Take moso bamboo with a diameter of 12-18cm, cut it to a length of 120cm according to the diameter change, divide it into 5.5cm wide, plasticize, flatten, dry to a moisture content of about 12%, planed to a width of 5cm, and a thickness of 5cm 1cm plate. Horizontal splicing width, the splicing width is 120cm, the adhesive is phenol modified resorcinol formaldehyde resin, the amount of glue is 150g/m ² , the width is spliced in the splicing machine, the cold pressing time is 60min, and it can be used after 24 hours The next step. Refer to Figure 8 for the method of spelling width. Take small-diameter grade fast-growing poplar wood with a diameter of 8-20cm, cut it to a length of 120cm according to the bending state of the wood, and use the regular hexagonal sawing method to saw it into a 9mm-thick beveled board (the yield can reach more than 65%) , as shown in Figure 5, dried to about 11% moisture content, planed to a thickness of 8mm, the same size and shape of the end surface with beveled edge width, basically the combination of string-sawn boards and string-sawn boards, quarter-sawn boards and quarter-sawn boards Board assembly, the width of the board is 120cm, the adhesive is phenol modified resorcinol formaldehyde resin, the glue amount is 150g/m ² , the width is assembled in the board machine, the cold pressing time is 60min, and it can be used after 24 hours in the next step. See Figure 6 for the method of spelling (oblique edge spelling).

Put the bamboo boards with a width of 120cm (length)×120cm (width)×1cm (thickness) and the fast-growing boards with a width of 120cm (length)×120cm (width)×8mm (thickness) in an impregnation tank, seal and impregnate Tank, vacuum, vacuum degree 0.08MPa, after vacuum time 3h, use vacuum to fill the impregnation tank with low-molecular phenolic resin, the resin solid content is 45%, pressurize the tank to 1.5MPa, and raise the temperature at the same time to keep the liquid in the tank The temperature is 35-40°C, the pressure holding time is 4 hours, and the pressure is released. The impregnated resin in the tank is drawn out, and then the tank is sealed and then vacuumed. The vacuum degree is 0.08MPa. After the vacuum time is 3 hours, the pressure is released.

Place the impregnated board in a drying kiln to dry until the resin is completely cured.

Glue is applied on the slab that the impregnated resin is completely cured, the adhesive applied is phenol modified resorcinol formaldehyde resin, and the amount of glue applied is 130g/m ² .

Lay up the coated rubber slabs, the number of laminated layers is 3 or 9 layers, bamboo-wood-bamboo is alternately assembled, the method of assembly is along the grain (refer to Figure 9), and the textures are perpendicular to each other. (Refer to Figure 10). Finally, a square material with a total size of 120cm (length) x 120cm (width) x 2.6 (2.8) (or 9 (8.2)) cm (thickness) is formed.

Put the assembled billets into a cold press for cold pressing, with a unit pressure of 1.5 MPa, a compression rate of 10%, and a cold pressing time of 1 hour. After 24 hours of health preservation after pressure relief, you can enter the follow-up process related to floor processing.

The mechanical properties of this floor are tested, the density is 0.67g/cm ³ , the static bending strength (MOR) is 164MPa, the elastic modulus (MOE) is 17GPa, the nail holding force is 1300N, and the water absorption thickness expansion rate is 1.5%. Combustible, mildew-proof, anti-corrosion, insect-proof performance, and can be used directly on the outdoor floor without painting.

Example 14

Take moso bamboo with a diameter of 12-18cm, cut it to a length of 120cm according to the diameter change, divide it into 5.5cm wide, plasticize, flatten, dry to a moisture content of about 12%, planed to a width of 5cm, and a thickness of 5cm 1cm plate. Horizontal splicing width, the width of the splicing board is 120cm, the adhesive is polyurethane adhesive, the glue amount is 150g/m ² , the width is spliced in the splicing machine, the cold pressing time is 60min, and it can be used in the next process after 24 hours. Refer to Figure 8 for the method of spelling width. Take small-diameter grade fast-growing poplar wood with a diameter of 8-20cm, cut it to a length of 120cm according to the bending state of the wood, and use the regular hexagonal sawing method to saw it into a 9mm-thick beveled board (the yield can reach more than 65%) , as shown in Figure 4, dried to about 11% moisture content, planed to a thickness of 8mm, the same size and shape of the end surface with beveled board width, basically the combination of string-sawn boards and string-sawn boards, quarter-sawn boards and quarter-sawn boards Board assembly, the width of the board is 120cm, the adhesive for the width is polyurethane adhesive, the glue amount is 150g/m ² , the width is assembled in the board machine, the cold pressing time is 60min, and it can be used in the next process after 24 hours. See Figure 6 for the method of spelling (oblique edge spelling).

Put the bamboo boards with a width of 120cm (length)×120cm (width)×1cm (thickness) and the fast-growing boards with a width of 120cm (length)×120cm (width)×8mm (thickness) in an impregnation tank, seal and impregnate Tank, vacuuming, vacuum degree 0.08MPa, after vacuum time 3h, use vacuum to fill the impregnation tank with low molecular weight melamine formaldehyde resin, the resin solid content is 50%, pressurize the tank, the pressure is 1.5MPa, while raising the temperature, keep the tank The temperature of the liquid is 35-40°C, the pressure holding time is 4 hours, the pressure is released, the impregnated resin is drawn out from the tank, and then the tank is sealed and then vacuumed, the vacuum degree is 0.08MPa, and the pressure is released after the vacuum time is 3 hours.

Place the impregnated board in a drying kiln to dry until the resin is completely cured.

Glue is applied on the fully cured slab of the impregnated resin, the adhesive applied is polyurethane adhesive, and the amount of applied adhesive is 130g/m ² .

Lay up the coated rubber slabs, the number of laminated layers is 3 or 9 layers, bamboo-wood-bamboo is alternately assembled, the method of assembly is along the grain (refer to Figure 9), and the textures are perpendicular to each other. (Refer to Figure 10). Finally, a square material with a total size of 120cm (length) x 120cm (width) x 2.6 (2.8) (or 9 (8.2)) cm (thickness) is formed.

Put the preassembled plate into a cold press for cold pressing, the unit pressure is 2.5MPa, the compression rate is 20%, and the cold pressing time is 1h.

After 24 hours of health preservation after pressure relief, you can enter the follow-up process related to floor processing.

The mechanical properties of this floor are tested, the density is 1.05g/cm ³ , the static bending strength (MOR) is 184MPa, the elastic modulus (MOE) is 19GPa, the nail holding force is 1600N, and the water absorption thickness expansion rate is 1.1%. Flammable, mildew-proof, anti-corrosion, and insect-proof properties, and can be directly used for indoor floors without painting.

Claims (2)

1. The manufacture method of impregnated compressed reinforced floor is characterized in that: it comprises the following steps: a. Making floor wool: cutting the fast-growing wood into boards, drying, planing to obtain floor wool; or splitting the bamboo longitudinally, plasticizing, flattening, drying, and planing to obtain floor wool; b. Impregnation: impregnate the floor wool with low molecular weight phenolic resin or melamine formaldehyde resin; c. Dry until the resin is completely cured and apply glue or dry until the resin is not completely cured: dry the impregnated floor wool until the resin content is 50-80% to obtain a blank; or dry the impregnated floor wool until the resin is completely cured, and then apply adhesive Obtain the blank; the adhesive is resorcinol formaldehyde resin, phenol modified resorcinol formaldehyde resin, or polyurethane adhesive; d. Blank assembly: Bamboo blanks are laminated and assembled to obtain bamboo blanks; e. Hot pressing or cold pressing forming: cold pressing or hot pressing the bamboo body or fast-growing wood blank to obtain the floor blank; f. Perform groove-and-groove or flat-cut processing on the floor blank to obtain an impregnated compression reinforced floor; Saw the fast-growing wood into boards using the regular hexagonal or regular octagonal sawing method; that is, make the fast-growing wood logs into the largest regular hexagonal prism or regular octagonal prism; Each sawing surface is parallel to one side of the regular hexagonal prism or the regular octagonal prism. 2. The manufacturing method of impregnated compression reinforced floor as claimed in claim 1, characterized in that: before the impregnation, there is the following step of widening: the fast-growing wood floor wool is horizontally widened to obtain the widened fast-growing wood floor wool, and the width is widened. Principle: Two pieces of fast-growing floor wool with the same width and the same bevel angle on both sides are put together, and the boards obtained by sawing in a regular hexagon or regular octagon are divided into quarter-sawn boards and string-sawn boards. The string-sawn boards are combined, and the quarter-sawn boards are combined with the quarter-sawn boards; the adhesives used for the width are resorcinol formaldehyde resin, phenol modified resorcinol formaldehyde resin, and polyurethane adhesive. 3. The manufacturing method of impregnated compressed laminated flooring as claimed in claim 2, characterized in that: the thickness of the fast-growing material floor wool is 6-10 mm; body, and the step of alternately compounding and laminating the fast-growing wood blank and the bamboo blank to obtain the composite green body; hot-pressing or cold-pressing molding also includes cold-pressing or hot-pressing the fast-growing wood blank to obtain the fast-growing wood floor The step of the blank, and the step of cold pressing or hot pressing the composite green body to obtain the composite floor blank. 4. The manufacturing method of impregnated compression reinforced floor as claimed in claim 3, characterized in that: when assembling the blanks, the number of layers is at least three, the central plane in the direction of the thickness of the blanks is the plane of symmetry, and the layers of fast-growing material blanks are symmetrical up and down , each fast-growing wood floor wool that forms a symmetrical fast-growing wood blank layer has the same width and bevel angles on both sides. 5. The manufacturing method of impregnated compressed laminated flooring as claimed in claim 4, characterized in that: after the impregnation, the floor wool is dried until the resin is completely solidified, glued, and formed into blanks by cold pressing, during cold pressing, The pressure is 1.5-6MPa, the compression rate is 5-25%, and the time is 60-120min; after the impregnated floor wool is dried until the resin is not completely cured, the blank formed by forming a blank with a thickness of ≤5cm is hot-pressed in a hot press. Pressing temperature is 150-250°C, hot-pressing pressure is 2-6MPa, compression rate is 10-50%, hot-pressing time is 10-50min; the blanks with a thickness of >5cm are formed by forming blanks that are impregnated and dried until the resin is not completely cured. The body is hot-pressed in a high-frequency press, with a high-frequency oscillation power of 10-50kW, a pressure of 2-6MPa, a compression rate of 10-50%, a hot-pressing time of 10-50min, and a pressure-holding and cooling time of 30-60min. 6. The manufacturing method of impregnated compressed laminate flooring as claimed in claim 1, characterized in that: the thickness of the fast-growing floor wool is greater than or equal to 20mm; after impregnating the fast-growing floor wool, it is dried until the resin is incompletely cured to obtain a fast-growing material blank, and then The fast-growing material blank is hot-pressed in a hot-pressing machine; when hot-pressing, the hot-pressing temperature is 150-250°C, the pressure is 2-6MPa, the compression rate is 10-50%, and the hot-pressing time is 10-50min. 7. The manufacturing method of impregnated compression reinforced floor as claimed in claim 1, characterized in that: when hot pressing: pressure 2-6MPa, compression rate 10-50%, hot pressing time 10-50min; when cold pressing: pressure 2 -6MPa, compression rate 10-25%, time 60-120min. 8. The manufacturing method of impregnated compression reinforced floor as claimed in claim 1, characterized in that: the fast-growing timber is pine, Chinese fir, poplar, bamboo willow and eucalyptus with a diameter grade of more than 8 cm; the bamboo material is a diameter grade of more than 8 cm moso bamboo; in step a, the floor wool is dried to a moisture content of 6-14%; in step c, the amount of adhesive on one side of the adhesive is 100-300g/m ² . 9. An impregnated compression reinforced floor, characterized in that: it is obtained according to the manufacturing method of the impregnated compressed reinforced floor according to any one of claims 1-8.